#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int func(int a)
{
	int b;
	switch (a)
	{
	case 1:
		b = 30;
	case 2:
		b = 20;
	case 3:
		b = 16;
	default:
		b = 0;
	}
	return b;
}

int main()
{
	printf("%d\n", func(1));

	return 0;
}